McIntosh MHA200 Vacuum Tube Headphone Amplifier (RESERVED)

The McIntosh MHA200 Vacuum Tube Headphone Amplifier is designed for discerning headphone enthusiasts seeking the performance and character of McIntosh vacuum tube amplification in a dedicated personal listening system.

The MHA200 combines a pair of 12AT7 and 12BH7A dual-triode vacuum tubes with a pair of McIntosh Unity Coupled Circuit output transformers. These transformers have been specifically adapted for headphone use, providing four selectable impedance ranges from 32 ohms through to 1,000 ohms, with 500mW of headphone power output.

The MHA200 offers both balanced and unbalanced stereo inputs and provides three headphone connection options. These comprise dedicated left and right 3-pin balanced XLR outputs, a 4-pin balanced stereo XLR output and a conventional 1/4-inch stereo headphone connection. A built-in volume control also allows the MHA200 to be connected directly to sources with fixed-volume outputs.

Amplification

Type: Vacuum Tube Headphone Amplifier

Output Power: 500mW

Output Transformers: 2 x McIntosh Unity Coupled Circuit output transformers

Tube Complement: 2 x 12AT7 and 2 x 12BH7A dual-triode vacuum tubes

Headphone Impedance

Impedance Range 1: 32 – 100 Ohms

Impedance Range 2: 100 – 250 Ohms

Impedance Range 3: 250 – 600 Ohms

Impedance Range 4: 600 – 1,000 Ohms

Inputs

Unbalanced Input: 1 x stereo

Balanced Input: 1 x stereo

Outputs

3-Pin Balanced XLR: 1 pair, dedicated Left and Right balanced output

4-Pin Balanced XLR: 1 x balanced stereo output

Headphone Output: 1 x 1/4-inch stereo headphone jack=

Audio Performance

Total Harmonic Distortion: 0.5% maximum, 20Hz – 20kHz

Signal-to-Noise Ratio: 94dB

Controls

Volume Control: Yes

Dimensions & Weight

Dimensions (W × H × D): 6-1/8 × 5-3/4 × 9-1/8 inches

Dimensions (W × H × D): 15.6 × 14.6 × 23.2cm

Net Weight: 10.5lbs / 4.8kg

Shipping Weight: 12lbs / 5.5kg